3.0L Duramax Diesel - Largest Fault Yet

Super excited for this! I've got less than 2k miles on my '24 LZ0 and just pre-ordered! I've been eagerly anticipating this release. I think PPE is working on one also, but your explanation is wonderful, and I found your fuel saver kit to be of excellent high quality. I can't wait to add another VSE product to my system! Thank you guys for taking the time to develop this and telling us about all of the relevent information related to it. There's no doubt that you really care about your work and put your heart and soul into your products.

Will you do a how-to install video? Would be great if the removal and cleaning of the heat exchanger were included!

Very cool product and nice presentation. I would recommend changing from the sight glass on the product though, I know many companies like using those and they have been used on air compressor pumps for like ever but they are not that great over time. They are too small and hard to read or see through many times. Just have the catch can with the long hydraulic oil level indicator or even better just make the main portion of the can out of a strong clear plastic so you can see through the whole thing. Way more user friendly for the customer.

I have 55k mile in mine and it’s an amazing engine. I’ve averaged as high as 42 mpg and 20 mpg while towing. It sips fuel, has tons of torque, and has been very reliable.

It looks like a must have.

This is awesome. Thanks guys. Hopefully we can order it to Canada when you’re ready to release it.

There should be a video how to install for those who are not familiar with installing

Nice new product. I am going to definitely be looking to add to my new 24 Sierra. And to think I only thought Harleys needed a catch can. Got one on it too.

What precautions have you taken to deal with this icing up in cold weather? These things can be a nightmare in northern states that routinely have below zero temps. I had a catch can that would ice up to the point it blocked all flow. Had to drain it once a week.

Doesn’t GM know about this issue? If so, why do the considered it “not an issue”. I’ve seen ford mechanics say catch cans do nothing to help save the Ford blow by…. All of this is Government EPA heavy handed ness. These diesel’s have to be as clean as a gas engine yet they get significantly better mileage. The better mileage alone makes them cleaner than a gasoline engine due to 25-20% less fuel burnt.

If they are supposed to run with a couple inches of vacuum why do they all have blowby?

Post a link to order when they're shipping, ready to order.

Great video has GM commented or has made change to their engine. I was going to purchase a 2024 Suburban with the Duramax 3.0 LZO, not now!

How quickly will yall know if this will fit on the 2025 suburban? Not sure if they would shift any placement. Planning to order one once available or a gmc but no dif there.

How are the 2024 redesigned 3.0l doing?

are you working on LZ0 tunes by chance?

Very cool and Tks . Two questions. 1, when is it available and 2. Quick question on the turbo. I’m new to diesels and have the LZ0. When you run the engine for a long time, I was told to let the truck idle for a minute or two to make sure the turbo cools down so the oil won’t cook in there. Does this engine still circulate oil (turbo saver style) or coolant after you shut down the engine or should I continue to let her idle to bring down the temps. If so how long. Many Tks.

there has been a change in the matrix.

My 21 3.0 is north of 70k miles. The mileage has actually improved as the miles have gone up. The coolant control valve has and long crank has been the only issues. The long crank was fixed with a re-flash. I don’t feel there is anything to be gained here.

For the amount that these trucks are why should we have to spend and time to make it work like it is supposed to